package cn.wellstudio.precisehelp.util;
/*
 * md5加密工具类
 */
import java.security.MessageDigest;


import org.junit.Test;


public class MD5Util {
	public final static String MD5(String s) {
		char hexDigits[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
				'A', 'B', 'C', 'D', 'E', 'F' };
		try {
			byte[] btInput = s.getBytes();
			MessageDigest mdInst = MessageDigest.getInstance("MD5");
			mdInst.update(btInput);
			byte[] md = mdInst.digest();
			int j = md.length;
			char str[] = new char[j * 2];
			int k = 0;
			for (int i = 0; i < j; i++) {
				byte byte0 = md[i];
				str[k++] = hexDigits[byte0 >>> 4 & 0xf];
				str[k++] = hexDigits[byte0 & 0xf];
			}
			return new String(str);
		} catch (Exception e) {
			e.printStackTrace();
			return null;
		}
	}
	
	
	/**
	 * 生成密码 123456
	 */
	@Test
	public void createPsw() {
		
		System.out.println(MD5Util.MD5("Yb6CwCWP2rh1veRyn5SgCC4vHTE5Awlp"+"123456"+"15211183724"));
		
	}

}